Device for cutting rods



(No Model.)

0. P. STAOKPOLE.

DEVIGE FOR CUTTING RODS.

No. 342,712. Patented May 25, 1886.

right angles, and so placed opposite to each UNITED STATES PATENTOFFICE.

DEVICE FOR CUTTING RODS.

EfiPECIFICATION forming part of Letters Application filed September :36,1885. Serial No. 178,213.

To all whom it may concern:

Be it known that 1, CHARLES F. STACK- POLE, of Lynn, county of Essex,and State of Massachusetts, have invented an Improvement in Devices forCutting Rods, of which the following description, in connection with theaccompanying drawings, is a specificationlike letters on the drawingsrepresenting like parts.

This invention has for its object the production of an apparatus bywhich to cut off rods orwire, leaving a smooth flat end devoid of raggededges, and this without at all changing the diameter of the rod or wire.

The invention consists of a pair of bent levers having holes ororifices, through which the rod or wire to be out is passed, said leversbeing so pivoted with relationto each other as to allow the holes toregister when said levers are in a given position, combined with arotating shaft having wrist-pins projecting therefrom at oppositeends,which connect with and work in slots cutin the ends of the bentlevers opposite their pivotal connections, and means, substantiallyas'will be described, forrotating said shaft. The levers are preferablybent at other as to allow one each of their corresponding arms tointersect at right angles, and to be pivoted to the frame of the machinebeyond such point of intersection. The bent levers at their points ofintersection are provided with holes, or it may be dies, through whichthe rod or wire to be cut passes, said dies registering when the leversare in a given position, and passing each other to sever the rod whenthe levers are moved. The ends of the bent levers opposite their pivotalconnections are provided with slots, in which wrist-pins leading fromthe rotating shaft work, and an operating-lever is splined to one of thewristpins, by means of which motion is impart-ed to the machine.

Figure 1 represents in front elevation an apparatus for cutting rods orwire constructed in accordance with this invention, and Fig. 2 a topview thereof.

The frame A, having the base A, is of suitable shape to support theworking parts.

The cutting mechanism consists of the pair of lovers a b bent, as hereinshown, at right Patent No. 342,712, dated May 25,1886.

(No model.)

angles, and so located opposite to each other as to allow one each oftheir corresponding arms to intersect at right angles and be pivoted tothe frame A by the pins a b a short distance beyond such point ofintersection, while the ends of the levers opposite their pivotalconnections so come together as to be joined to the operating mechanism.The bent levers at their point of intersection are provided with holesor orifices 2 3, of suitable diameter, through which the rod or wire tobe cut is passed, so that as the levers are moved on their pivots and ina given position the holes will register, and on further movement of thelevers will move by each other.

Suitable dies,which maybe removed at will, and through which the rod orwire to be cut passes, may be employed, if desired.

The bent levers a bare moved on their pivots as follows: A shaft, m,(see dotted lines, Fig. 2,) has its bearings in the frame A. Twowrist-pins, a 0, (shown by dotted lines, Fig. 2,) project from oppositeends of the shaft on and enter slots 012, out in the ends of the bentlevers a b. An operating-lever, B, is splined to the wrist-pin a,movement of which rotates the shaft on. As the operating-lever B ismoved,the shaft m is rotated, and by the wristpins a 0 the bent levers ab are moved on their pivots. Normally the holes 2 3 register when theoperating-lever B lies in the position shown in Fig. 1, and at such timethe rod or wire to be severed will be moved. The lever a bears upon oneside of the rod and presses at its opposite side against the lever I),while the lever b bears upon the under side of the rod and presses theupper side against the lever a, so that the rod is acted upon by thelevers, or by dies, if dies are employed, on four sides at or about thesame time.

It has been found to be advantageous to locate the wrist-pins a 0eccentrically to the circle described by the said wrist-pins as theshaft or is rotated, so that one may act to move its lever prior to theother, although such arrangement is not essential.

B y the employment of the operating-lever B only a partial rotation isimparted to the shaft m; but as only alimited movement is required saidlever has been considered adequate, although, if desired, the shaft ormay be rotated ICO by power or in any other suitable manner withoutdeparting from this invention.

By acting upon four sides of the rod at or about the same time a verysmooth square surface is given to the severed end and its diameterremains unchanged, thereby obviating the necessity of finishing-the endof the rod after cutting.

I claim 1. In a machine for cutting rods or wire, a frame and pair ofintersecting bent levers pivoted thereto with their pivots out of lineand intersecting each other, said bent levers having holes 2 3 at theirpoint of intersection, which registerwhen the levers are in givenposition, and which, when the said levers are moved on their pivots, actupon four sides of the rod or wire to be out, as set forth.

2. The frame and intersecting bent levers pivoted thereto with pivotsout of line, combined with means, substantially as described, for movingthe said levers on their pivots, as set forth.

The frame and bent levers pivoted there .to and intersecting eachother,combined with the rotating shaft m and wrist-pins 0, connectedwith the said bent levers, said wrist pins being located atdifferentpoints in the circumference of a circle which they describe asthe shaft m is rotated, all as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHAS. F. STAGKIOLE.

\Vitne'sses g F. CUTTER, O. M. CONE.

